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debloat jmp_buf in _GNU_SOURCE mode 

i originally made it the same size as the bloated GNU version, which
contains space for saved signal mask, but this makes some structures
containing jmp_buf become much larger for no benefit. we will never
use the signal mask field with plain setjmp; sigsetjmp serves that
purpose.
This commit is contained in:
Rich Felker 2012-05-23 00:10:39 -04:00
parent 0c29adfe42
commit 25d575edc4
1 changed files with 0 additions and 3 deletions
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3
include/setjmp.h
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@ -12,9 +12,6 @@ extern "C" {
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
typedef unsigned long sigjmp_buf[(128+sizeof(jmp_buf))/sizeof(long)];
#ifdef _GNU_SOURCE
#define jmp_buf sigjmp_buf
#endif
int sigsetjmp (sigjmp_buf, int);
void siglongjmp (sigjmp_buf, int);
#endif